[arch-general] When will Arch switch to Systemd

fons at kokkinizita.net fons at kokkinizita.net
Thu Jan 20 16:10:09 EST 2011


On Thu, Jan 20, 2011 at 02:54:24PM -0600, C Anthony Risinger wrote:

> On Thu, Jan 20, 2011 at 2:34 PM,  <fons at kokkinizita.net> wrote:
> >
> > So here's my question: will a system using systemd still allow
> > this, *without* requiring source modifications to each and every
> > application (to join a specific cgroup), and *whitout* every
> > application requiring real-time or memory locks to be 'registered'
> > somewhere ?
> 
> i don't believe it would have any ill effect, but would need some testing.
> 
> i'm not 100% how it all ties into systemd, but a process being in a
> cgroup does not need permission/acceptance/patch from the process;
> it's just in it.  cgroups are also hierarchical, so you can have
> groups of groups.  there are several cgroup types (cpu/mem/etc) and
> each process can be in exactly one of each.

All correct. But a system using systemd (and hence cgroups) will
put an application either into some default cgroup (which will
very probably not have the required privileges, and hence needs
code in the application to move to another cgroup), or it will
require some 'registry' of applications that require a specific
cgroup to run in. Both are a real PITA compared to what whe have
today.

Ciao,

-- 
FA

There are three of them, and Alleline.



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